絶食による家蚕中腸管腔内腸球菌数の激増について
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概要
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The multiplication of bacteria in the mid-gut rumen of the silkworm larvae, when they were starved or ligatured, was investigated with the following results(1) In the mid-gut rumen of the healthy silkworm larvae of the 5th instar, the number of general bacteria increased at the initial half of the 5th instar and decreased at the later half. Such mode of increase and decrease, however, were not observed in the case of enterococcus.(2) When food-substances in the mid-gut rumen were not allowed to excrete for 24 hours by the ligature of the larval posterior portion, enhanced multiplications of general bacteria and enterococcus were observed. In such circumstance, the multiplication of enterococcus was more intensitive than that of general bacteria.(3) Under the starving condition, the number of general bacteria decreased exponentally, but the number of enterococcus increased remarkably.
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